Car journal and bearing



J. H. MOLEAN.

1 Oar Journal and Bearing.

'P'afent'e d Feb. 3,1880.

u l 5 I slots or perforations'extending through it and tion-surfaces.

reference to the accompanying drawings, in

UNIT D STATES.

JAMES H. McLEAN, or

PATENT O FICE.

s'r. Louis, MISSOURI.

OAR JOURNAL AND BEARING.

SPECIFICATION forming part of Letters Patent No. 224,205, dated February 3, 1880.

Application filed November 17, 1879.

To all whom it may concern:

Be it known that I, JAMES HENRY MG- LEAN, M. D., of the city and county of St. Louis, in the State of Missouri,have invented a new and useful Improvement in Journals and Bearings, of which the following is a specification.

My invention relates, first, to an improvement in journals applicable to either stationary or rotating axles for cars or carriages of all kinds and for machinery.

It consists in constructing a journal with any desirable number of diametrical or oblique connected by longitudinal grooves for containing oil and supplying it gradually to the fri'c- The central portion of the journal and the portion near the butting-shoulder. are left solid for strength.

My invention further consists in the combination of av journal constructed, as aforesaid, with a bearing provided with slots'or openings connected by longitudinal grooves, as hereinafter described.

In order that my invention. may be fully understood, I will proceed to describe it with V which Figure 1 is a plan of the improved journal as adapted for carriages. Fig. 2 is a perspective viewof the journal and bearing combined as adapted for railway-cars. Fig. 3 is a longitudinal section'thereof. Fig. 4is a transverse section of the same. Fig. 5 is a plan of the journal, illustratinga modification.

A represents-the bearing; at, its inner face, 0 c c, the bearing-surfaces thereof; and b b, vertical slots, forming reservoirs for oil, constructed with inclined inner faces, 0 and connected by longitudinal grooves b.

1) represents my improved journal, which I construct withtwo ormore perforations or slots, 6 0, extending completely through it, preferably in the diametrical position shown in Figs. 3 and 4, and with longitudinal grooves f connecting them.

The openings may be round, as shown in Fig.1, or may, if preferred, have the square shape illustrated. in Fig. 5, or any curved or angular form which will produce the same effect, the slots in either case passing from oneface or portion of the surface'of the journal to another portion, which may or may not be diametrically opposite.

f f represent longitudinal grooves connecting the perforations or slots 0 0. These grooves are of sufficient depth to form reservoirs for oil in connection with the slots or perforations through the journal, but do not have any serious weakening effect upon the journal. The slots or perforations are so disposed as to avoid weakening the. journal, the central part of the journal and 'the portion next to the butting-shoulder, where strength is chiefly required, being left solid.

In operation any redundance of oil will be automatically scraped from the journal and received in the longitudinal grooves ff and slots or perforations c e, as well as in the grooves and slots of the bearing, and there retained for subsequent use, being supplied automatically as the oil on the frictional surfaces is consumed. The. grooves f and perforations or slots 0 0 thus constitute efficient reservoirs for equalizing the supply of oil to the bearing-surfaces, and have a further efiect in preventing heating by the admission and circulation of air.

The longitudinal grooves f serve to extend the effect of the perforations or slots throughout the length of the journal, while by making its central part and the portion next the butting-ring solid, as described, I avoid any injurious impairing of its strength.

The slots or perforations e e and the grooves f f further serve to take up and retain any grit or foreign matter and prevent it grinding between the bearing-surfaces.

It is found by experiment that from four to six perforations in the journal and two longitudinal grooves on opposite sides, communicating with each other through the aforesaid perforations, constitute the most practical and beneficialembodinnent of my invention; but, if preferred, one of the longitudinal grooves may be dispensed with.

My improved journal may be made of cylindrical shape or tapering, as preferred.

I am aware that journals have before been provided with grooves and with openings conneetin g with reservoirs in various ways for the purpose of lubrication, and that deep longitudinal grooves or slots have been used for the reception of lubricating rollers. This therefore I do not claim but,

Having thus described my invention, the following is what I claim as new and desire to secure by Letters Patent:

1. The journal constructed with the shallow open longitudinal grooves ff, adapted to receive surplus oil from the bearing-surfaces, in combination with the slots or openings 06, ex- 

